Saw jointer



May 27 1924. 1,495,476

B. E. FRERE A SAW JOINTER Filed Aug. 27 1923 Y /N VENTQR TTOF'NEV Patented May 27, 1924.

UNITED STATES TENT OFFICE'.

BARTLETT E. FRERE, OF PORTLAND, OREGON.

SAW J'OINTER.

Application filed August 27, 1923.

T 0 all whom t may concern.'

Be it known that I, BARTLErrT E. FRERE, a citizen of the Unit-ed States, residing at Portland, county of Multnomah, and State of Oregon, have invented a new and useful Saw Jointer; and I do hereby declare that the following is a full, clear, and exact specication, such as will enable others skilled in the art to which it appertains to make and use the same.

The invention is a device for leveling up the points of saw teeth which may be adjusted to fit saws having teeth that areA in a straight line, or on a slight curve.

The ob-ject of the invention is t0 provide a jointer that may be adjusted to operate on saws having different curves, or being made in a straight line.

Another object of the invention is to provide a jointer with a frame that is of a simple and economical construction.

And a further object of the invention is to provide a jointer that may be adjusted to fit saws of different shapes, which contains a small removable iile.

lVith these ends in view the invention embodies a frame having a vertical plate with oli'set ends and brackets on the ends through which a horizontal plate may pass, and an adjustable clamp that is attached to the rear of the vertical plate and is provided with a set screw for holding the horizontal plate and a file.

Other features and advantages of the invention will appear from the following description taken in connection with the drawings, whereinz Figure l is a front elevation.

Figure 2 is a bottom view.

Figure 3 is a cross section through the center ot the device.

Figure 4 is an end view.

Figure 5 is a rear view of the central portion of the device. v

ln the drawings I have shown my device as it would be constructed, wherein numeral 1 indicates the vertical member forming the frame, numeral 2 the horizontal spring plate` and numeral 3 the clamp. The frame may be constructed of a flat plate forming the vertical member 1, which is shaped as shown in Figure 1, the upper edge being in a straight line and the lower edge tapering from a point in the center upward toward the end. At points 4 adjacent the ends, the plate is bent backward, as shown in Figure 2,

Serial No. 659,517.

and then at the points 5 it is bent at right angles to form clips 6 at the ends, as shown inFigure 4. These clips are provided with slots 7, the lower sides of which are open to form openings 8, through which the saw teeth may pass. The ends of the horizontal plate 2 are held in 4the slots 7 as shown, and are free toslide backward and forward as the curvature of the plate is adjusted.

In the center and at the rear of the vertical member 1, is a bar or enlarged portion 9, that projects upward to a point 10, which is beveled and upon which the horizontal member may rest when it is in a straight line. In this member is also a threaded hole 11 into which a thumb screw 12, which passes through a slotted hole 13 in the clamp 3, so that the clamp 3 may be readily raised and lowered. It will be seen that the clam 3 is made of a rectangular shaped bar having a vertical member, a horizontal member and a clip that is formed by bending the end of the horizontal member downward and backward, and in the horizontal member is a threaded hole into which a thumb screw 14 is screwed, which clamps the central portion of the horizontal plate 2 against the point or clip of the clamp.

The horizontal member 2 may be constructed of flat pieces of spring steel-15 and 16, which are held to another iat piece of material 17, at the center by rivets 18, with spacers 19 between them and the Hat pieces of material. A le may be held between the plate 17 and the point or clip of the clamp 3 by the screw 14.

It will be understood that changes may be made in the construction without departing from the spirit of the invention. One of which changes may be in the shape or design of the frame. Another may be in the making oit the horizontal members, straight instead of tapering, or of any other desired shape. And still another change may be in the design of the clamp for holdingl the file and Jfor raising and lowering the horizontal member.

The construction will be readily understood from the foregoing description. To use the device it may be assembled as shown and placed upon a saw blade as shown in Figure 1. The thumb screw '12 may be loosened so that the center of the horizontal member 2 may be raised or lowered until the horizontal member rests upon the points of the teeth of the saw, and then the screw 12 mayT be tightened. The device may then be moved backward and'forward until all the teeth are even.

Having thus fully described the invention what claim as new and desire to secure by Letters Patent, is:

l. A j ointer of the class described, having a frame that comprises a vertical member having its ends offset and bent at right angles to form clips, said Clips having rectangular slots in them with their lower sides open; a horizontal member comprising flat spring steel plates joined together at the center by another plate Which forms a recess for a file, the outer ends of said plates projecting through the slots in the clips; and a clamp adjustably held to the vertical member of the Jframe and having a horizontal clamp in its upper end in which the horizontal member` and a lile may bc held.

2. A jointer having a frame comprising a vertical member With Clips at its ends; a horizontal member, the outer ends of which project through the clips at the ends of the frame, and the central portion of which is offset to provide a space for a ile; and a clamp :tor adjustably holding the horizontal member in relation to the frame.

A saw jointer having a vertical member with offset ends and slots in the ends; a horizontal member, the ends of which pass through the slots; a means for adjustably holding` the horizontal member in relation to vthe vertical member; and a stop for holding the horizontal member in a straight line.

BARTLETT E. FRERE. 

